This is a set of 4 stainless steel ice cubes, note that, we don’t mean the ice cube tray is made of stainless steel, in fact, the tray for the ice cubes is non-toxic gel, so these are genuine stainless steel reusable cubes that allow you to make ice cubes and chill your favorite beverage. Of course, no need to take the ice cubes from the stainless steel cubes. All you need to do is just to put the metal cubes with ice in your drink for instant cooling. But be careful, don’t swallow the cubes.